Neutrophil-lymphocyte ratio (NLR) and BMI were examined as pre-operative predictors for lymph node metastases in patients with low-risk endometrial cancer. The study was a retrospective analysis of 534 endometrial cancer patients that underwent hysterectomy and lymph node dissection. Included subjects had a preoperative diagnosis of a grade 1 or 2 endometrioid carcinoma and no macroscopic extrauterine disease. We compared node-negative to node-positive patients to identify correlates of node-positive disease. The node-positive group presented with lower BMI than the node-negative group, 31.5 and 34.4, respectively (p = .03). The mean NLR was higher in the node-positive group 3.4 vs 2.9 (p = .08), showing a trend towards significance on univariate analysis. On multivariate analysis, lower BMI was found to be an independent predictor for nodal metastasis. Our data suggest that lower BMI is a risk factor for lymph nodes involvement in low-risk endometrial cancer. Impact statement Most endometrial cancer patients have low-risk disease with low risk for lymph nodes metastasis. In order to reduce the number of patients that will undergo unnecessary lymph node dissection, different types of preoperative predictors for lymph node involvement were studied. CA 125 and different imaging modalities were found as useful predictors for more advanced disease. Less studied predictors are the systemic inflammatory response markers and patient's BMI. This study suggests that lower BMI is a risk factor for lymph node involvement in low-risk endometrial cancer. The neutrophil to lymphocyte ratio was close to significance as a predictor for lymph node involvement. In practice, physicians might favour comprehensive lymph node dissection when there is a doubt regarding the procedure but the patient is lean. The study's conclusion can be utilised for triaging patients to general gynaecologist vs gynaecologic oncologist. Further research should focus on combining predictors such as age, BMI, NLR, CA 125 and imaging to better predict lymph nodes involvement in low-risk endometrial cancer.
Highlights COVID-19 can cause a hyperinflammatory state akin to cytokine release syndrome (CRS). Our report shows the efficacy and safety of using anti-IL-6/IL-6-R therapy in 31 patients. Treatment at the onset of severe CRS may be the ideal window for intervention. Long term effects of these agents are currently lacking.
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